If you have (not vanilla AutoCAD), you have more options:
: This tool is designed to easily import and export terrain meshes between Google Earth and AutoCAD. It can generate dynamic contour lines and profiles directly within your CAD environment. contours from google earth to autocad
There are free plugins and scripts that extract the Google Earth terrain mesh directly into AutoCAD as a 3D surface. If you have (not vanilla AutoCAD), you have
No process is without caveats. The primary limitation of Google Earth-sourced contours is . Google Earth’s elevation data has a vertical accuracy of roughly 1 to 5 meters in ideal conditions (often worse in dense forests or urban canyons). This makes the data suitable for conceptual and preliminary design but wholly inappropriate for final construction documentation, where survey-grade accuracy (centimeter-level) is mandatory. No process is without caveats
The journey begins in Google Earth Pro (the free desktop version, which includes advanced import/export tools). The user first navigates to the project site and creates a polygon or path that defines the area of interest. To capture elevation, the user must save the polygon’s vertices as a KML file that includes altitude data. A more robust method involves creating a dense grid of "placemarks" or using a third-party screen-capture tool that samples the elevation beneath a defined grid. However, the most common professional approach is to use a specialized data extraction utility (e.g., "GIS to KML" or a script within Google Earth) that generates a point cloud or a set of coordinate points (Latitude, Longitude, Elevation) from the visible terrain.
: Features the SPMIMPORT command to bring Google Earth objects into AutoCAD with automatic coordinate transformation . 3. Advanced GIS Workflow (Global Mapper)